2023 FORD BRONCO service

If it flashes, engine misfire could beoccurring. Increased exhaust gastemperatures could damage the catalyticconverter or other vehicle components.Avoid heavy acceleration and deceleration,and have your vehicle checked as soon aspossible.
Powertrain Warning Lamp
If it illuminates when the engineis running, this indicates apowertrain or four-wheel drivefault. If it flashes when you are driving,immediately reduce the vehicle speed.Avoid heavy acceleration and deceleration,and have your vehicle checked as soon aspossible.
If both lamps illuminate when the engineis running, stop your vehicle as soon as itis safe to do so. Continuing to drive yourvehicle could cause reduced power or theengine to stop. Switch the ignition off andattempt to restart the engine. Have yourvehicle checked as soon as possible.
STARTING AND STOPPING THE ENGINE – INFORMATION MESSAGES
ActionMessage
Displays if you exceed the starting time limit. You cannotattempt to start the engine for 15 minutes. If you cannot startthe engine after 15 minutes passes, have your vehicle imme-diately checked.
Cranking Time Exceeded
Displays if you are unable to start your vehicle with a correctlycoded key. The system has detected a fault that requiresservice. Have your vehicle checked as soon as possible.
Starting System Fault
Displays if the system does not detect a valid passive key.No Key Detected
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WHAT IS AUTO-START-STOP
Auto Start-Stop Technology: Ford Cars andSUV's
The system is designed to help reduce fuelconsumption and CO2 emissions bystopping the engine when it is idling, forexample at traffic lights.
AUTO-START-STOP
PRECAUTIONS - MANUAL
TRANSMISSION
WARNING: Apply the parkingbrake, shift into neutral, switch theignition off and remove the key beforeyou leave your vehicle. Failure to followthis instruction could result in personalinjury or death.
WARNING: Apply the parkingbrake, shift into neutral, switch theignition off and remove the key beforeyou open the hood or have any serviceor repair work completed. If you do notswitch the ignition off, the engine couldrestart at any time. Failure to follow thisinstruction could result in personal injuryor death.
AUTO-START-STOP
PRECAUTIONS - AUTOMATIC
TRANSMISSION
WARNING: Apply the parkingbrake, shift into park (P), switch theignition off and remove the key beforeyou leave your vehicle. Failure to followthis instruction could result in personalinjury or death.
WARNING: Apply the parkingbrake, shift into park (P), switch theignition off and remove the key beforeyou open the hood or have any serviceor repair work completed. If you do notswitch the ignition off, the engine couldrestart at any time. Failure to follow thisinstruction could result in personal injuryor death.
SWITCHING AUTO-START-
STOP ON AND OFF
The system turns on when you switch theignition on.
Press the button to switch thesystem off.
Note:OFF illuminates in the switch.
Note:Deactivating the system using thebutton lasts only one key cycle.
Press the button again to switch thesystem back on.
Note: The system turns off if it detects amalfunction. If the system malfunctions,have your vehicle checked as soon aspossible.
STOPPING THE ENGINE -
MANUAL TRANSMISSION
1.Stop your vehicle.
2.Shift into neutral.
3.Release the clutch pedal and theaccelerator pedal.
Note:To obtain maximum benefit from thesystem, shift into neutral and release theclutch pedal whenever you stop your vehiclefor more than three seconds.
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WHAT IS THE CATALYTIC
CONVERTER
The catalytic converter is part of yourvehicle's emissions system and filtersharmful pollutants from the exhaust gas.
CATALYTIC CONVERTER
PRECAUTIONS
WARNING: Do not park, idle ordrive your vehicle on dry grass or otherdry ground cover. The emission systemheats up the engine compartment andexhaust system, creating the risk of fire.
WARNING: The normal operatingtemperature of the exhaust system isvery high. Never work around or attemptto repair any part of the exhaust systemuntil it has cooled. Use special care whenworking around the catalytic converter.The catalytic converter heats up to a veryhigh temperature after only a shortperiod of engine operation and stays hotafter the engine is switched off.
WARNING: Exhaust leaks mayresult in entry of harmful and potentiallylethal fumes into the passengercompartment. If you smell exhaustfumes inside your vehicle, have yourvehicle inspected immediately. Do notdrive if you smell exhaust fumes.
To avoid damaging the catalytic converter:
•Do not crank the engine for more than10 seconds at a time.
•Do not run the engine with a spark pluglead disconnected.
•Do not push-start or tow-start yourvehicle. Use booster cables. See JumpStarting the Vehicle (page 330).
•Use the correct fuel. See Fuel andRefueling (page 179).
•Do not switch the ignition off when yourvehicle is moving.
•Avoid running out of fuel.
•Have the items listed in scheduledmaintenance information performedaccording to the specified schedule.
Note:Do not make any unauthorizedchanges to your vehicle or engine. By law,vehicle owners and anyone whomanufactures, repairs, or services a fleet ofvehicles are not permitted to intentionallyremove an emission control device orprevent it from working.
CATALYTIC CONVERTER –
TROUBLESHOOTING
CATALYTIC CONVERTER –WARNING LAMPS
Your vehicle has an on-board diagnosticssystem that monitors the emission controlsystem. If any of the following warninglamps illuminate, this may indicate thatthe on-board diagnostics system hasdetected an emission control systemmalfunction.
Continuing to drive your vehicle may causereduced power or the engine to stop.Failure to respond to a warning lamp maycause damage that your vehicle Warrantymay not cover. Have your vehicle checkedas soon as possible.
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•4H - Four-wheel drive high. SeeFour-Wheel Drive High (page 199).
•4L - Four-wheel drive low. SeeFour-Wheel Drive Low (page 200).
Note:Do not perform this operation whenyou have cruise control or trail controlselected and active. The system may notshift as expected.
Note: Do not perform this operation if therear wheels are slipping or when applyingthe accelerator pedal.
Note:When the light is solid, the systemhas achieved the desired four-wheel drivemode. When a selected four-wheel drivemode LED is blinking, the system isattempting to shift to that specificfour-wheel drive mode.
Note:When all lights are blinking, have yourvehicle serviced as soon as possible.
Note:When you achieve recreationaltowing, all lights are off and Neutral TowEnabled Leave Transmission in Neutralappears in the instrument cluster display.
Shifting to or from Four-WheelDrive Low
1.Bring your vehicle to a stop.
2.For vehicles with an automatictransmission, place in neutral (N). Forvehicles with a manual transmission,fully press the clutch pedal.
3.Push 4L on the four-wheel drive modeselector.
Note: A 4x4 Shift in Progress messageappears in the instrument cluster displayindicating the shift is in progress. If any ofthe previous shift conditions are not met,the shift should not occur and theinstrument cluster display can guide youthrough the proper shifting procedures.
Note: If Shift Delayed Drive Forwarddisplays in the instrument cluster display,place the transmission in a forward gear,move your vehicle forward approximately5 ft (1.5 m), and shift the transmission backto neutral (N) to allow the transfer case tocomplete the range shift.
FOUR-WHEEL DRIVE MODES
TWO-WHEEL DRIVE HIGH
Two-wheel drive high is for generalon-road driving. Power is sent to the rearwheels only.
Note:Two-wheel drive high can turn on oroff based on Drive Mode selection SeeG.O.A.T. Mode Control (page 260).
FOUR-WHEEL DRIVE AUTO (If
Equipped)
Four-wheel drive auto provideselectronically controlled four-wheel drivepower to both the front and rear wheels,as required, for increased traction in varyingon-road conditions. The four-wheel driveauto tuning varies based on selected DriveMode. See Selecting a Four-Wheel DriveMode (page 197).
Note:Four-wheel drive auto can turn on oroff automatically based on Drive Modeselection. See Selecting a Four-WheelDrive Mode (page 197).
FOUR-WHEEL DRIVE HIGH
Four-wheel drive high provideselectronically or mechanically lockedfour-wheel drive power to both the frontand rear wheels for use in off-road orwinter conditions such as deep snow, sandor mud. This mode is not for use on drypavement.
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Note:Four-wheel drive high can turn on oroff automatically based on Drive Modeselection.
FOUR-WHEEL DRIVE LOW
Four-wheel drive low provideselectronically or mechanically lockedfour-wheel drive power to both the frontand rear wheels for use on low tractionsurfaces, but does so with additionalgearing for increased torque multiplication.This mode is only for off-road conditionssuch as deep sand, steep slopes, or pullingheavy objects.
Note:Four-wheel drive low can turn on oroff automatically based on drive modeselection.
FOUR-WHEEL DRIVE
INDICATORS
Two-wheel Drive High
Illuminates briefly whentwo-wheel drive high is selected.
Four-wheel Drive Auto (If Equipped)
Illuminates when four-wheeldrive auto is selected.
Four-wheel Drive High
Illuminates when four-wheeldrive high is selected.
Four-wheel Drive Low
Illuminates when four-wheeldrive low is selected.
TRANSFER CASE FLUID
CAPACITY AND
SPECIFICATION
See Transfer Case Fluid Capacity andSpecification (page 479).
FOUR-WHEEL DRIVE –
TROUBLESHOOTING
FOUR-WHEEL DRIVE – WARNINGLAMPS
Illuminates when a four-wheeldrive or power train fault ispresent.
Note:When a system fault is present, thesystem can typically remain in whichevermode was selected prior to the faultcondition occurring. It does not default totwo-wheel drive in all circumstances. Whenthis warning is displayed, have your vehicleserviced by an authorized dealer.
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1.Close the driver door.
2.Shift into gear.
3.Press the accelerator pedal and pullaway in a normal manner.
ELECTRIC PARKING BRAKE
AUDIBLE WARNING
Sounds when the parking brake is on andyour vehicle is moving. If the warning tonecontinues after you have released theparking brake, this indicates a malfunction.Have your vehicle checked as soon aspossible.
RELEASING THE ELECTRIC
PARKING BRAKE IF THE
VEHICLE BATTERY HAS RUN
OUT OF CHARGE
WARNING: The electric parkingbrake does not operate if the vehiclebattery has run out of charge.
Connect a booster battery to the vehiclebattery to release the electric parking brakeif the vehicle battery has run out of charge.See Jump Starting the Vehicle (page330).
ELECTRIC PARKING BRAKE –
TROUBLESHOOTING
ELECTRIC PARKING BRAKE –WARNING LAMPS
Brake System
It illuminates red when you applythe parking brake and yourvehicle is on. If the lamp flasheswhen the parking brake has beenreleased, this indicates theparking brake system requiresservice. Have your vehicle checked assoon as possible.
Note:Lamps may vary depending on region.
Electric Parking Brake
When the lamp illuminatesyellow, it indicates a malfunctionin the electric parking brake.Have your vehicle checked as soon aspossible.
Note:Lamps may vary depending on region.
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ELECTRIC PARKING BRAKE – INFORMATION MESSAGES
ActionMessage
The electric parking brake has malfunctioned. Have yourvehicle checked as soon as possible.Park Brake MalfunctionService Now
The electric parking brake has not released. Manually releasethe electric parking brake. If the message continues to appear,have your vehicle checked as soon as possible.
Park Brake Not Released
The electric parking brake has not applied. Apply the electricparking brake. If the message continues to appear, have yourvehicle checked as soon as possible.
Park Brake Not Applied
The electric parking brake has not automatically released.Manually release the electric parking brake.Park Brake Use Switch toRelease
You have not pressed the brake pedal. Press the brake pedalto release the parking brake.To Release: Press Brakeand Switch
The electric parking brake has malfunctioned. Have yourvehicle checked as soon as possible.Park Brake Limited Func-tion Service Required
The electric parking brake system has been put into a specialmode that is used to allow service of the brakes. Have yourvehicle checked as soon as possible.
Brake maintenancemode
The electric parking brake has overheated. Wait for the elec-tric parking brake to cool down.Park Brake System Over-heated
The electric parking brake is released.Park Brake Off
The electric parking brake has not released. Manually releasethe electric parking brake. If the message continues to appear,have your vehicle checked as soon as possible.
Release Park Brake
The electric parking brake is applied.Park Brake On
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TRAIL TURN ASSIST –
TROUBLESHOOTING
TRAIL TURN ASSIST –INFORMATION MESSAGES
DetailsMessage
Switch to four-wheeldrive low (4L) or four-wheel drive high (4H) toactivate trail turn assist.See Selecting a Four-Wheel Drive Mode(page 197).
Trail TurnAssist Avail-able in 4L or4H
Trail turn assist systemmalfunction could bepresent. If this conditionpersists, have yourvehicle serviced.
Trail TurnAssist NotAvailable SeeManual
You have activated trailturn assist.Trail TurnAssist ON
You have switched trailturn assist off.Trail TurnAssist OFF
TRAIL TURN ASSIST –FREQUENTLY ASKED QUESTIONS
Why does Trail Turn Assist not activateafter unlocking the rear differential?
The rear differential may not be fullydisengaged. When possible, turn offthe rear axle locker while drivingstraight before using trail turn assist.If you are already in a tight turn whenyou encounter this situation, drivingthe vehicle for a short distance inreverse could allow the differential tofully disengage.
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